BBC Trending: Trends of the week in 60 seconds

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Were there scientific plot holes in the new film Interstellar? Why is a 90-year-old being arrested for feeding the homeless in Florida? What would happen if Saudi Arabia ran out of oil?

These and more social media trends of the week, in our 60-second round-up.

Produced by Ravin Sampat and India Rakusen

Images courtesy of Getty Images, Love Kolkata, ESA

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